CN220470507U - Clutch device for range-extending hybrid electric vehicle - Google Patents
Clutch device for range-extending hybrid electric vehicle Download PDFInfo
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- CN220470507U CN220470507U CN202322128173.9U CN202322128173U CN220470507U CN 220470507 U CN220470507 U CN 220470507U CN 202322128173 U CN202322128173 U CN 202322128173U CN 220470507 U CN220470507 U CN 220470507U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 8
- 230000009194 climbing Effects 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 description 13
- 239000010959 steel Substances 0.000 description 13
- 238000009434 installation Methods 0.000 description 7
- 239000004606 Fillers/Extenders Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of clutches, and provides a clutch device for a range-extended hybrid electric vehicle, which comprises a wet multi-plate clutch, an actuator and a pressure relief valve, wherein the actuator comprises a mounting shell, an electric control unit, a motor and a plunger pump are arranged in the mounting shell, the electric control unit is electrically connected with the motor, the motor is in transmission connection with the plunger pump, an oil inlet and an oil outlet are arranged on the mounting shell, the oil inlet is connected with an oil pan of the vehicle through a pipeline, the oil outlet is connected with a pressure oil cavity through a pipeline, the motor is used for controlling the plunger pump to absorb oil from the oil pan through the oil inlet and deliver oil to the clutch through the oil outlet, and the pressure relief valve is connected between the clutch and the actuator through a pipeline. The utility model has the advantages that: the wet-type multi-plate clutch realizes the hybrid drive of the engine and the motor, solves the problems of low speed, difficult climbing and insufficient power of the existing range-increasing power system, and can be applied to other hybrid passenger vehicles and commercial vehicles.
Description
Technical Field
The utility model belongs to the technical field of clutches, and particularly relates to a clutch device for a range-extending hybrid electric vehicle.
Background
The extended range hybrid system is also called a series plug-in hybrid system, simply, the vehicle is driven by an electric motor, and the vehicle is not driven by an internal combustion engine. For extended range hybrid vehicles, the only role of the internal combustion engine is to drive the generator to generate electricity, and the key role is to charge the battery to power the motor and other devices on the vehicle. The range extender is developed on the basis of the pure electric vehicle, and is a range extender, so that the range extender is added to the vehicle, and the purpose of installing the range extender is to further improve the endurance range of the pure electric vehicle and prevent the electric vehicle from being charged frequently. From the driving perspective, the range-extended electric vehicle is always driven by the pure electric vehicle, whether in pure electric mode or range-extended mode, and the internal combustion engine can not supply power to the vehicle but only supply power to the motor.
The power system of the extended range electric vehicle on the market at present has some problems, in the extended range power system, a generator, a motor and a battery are electrically connected, the battery pack can provide electric energy for the motor, and the motor is transmitted to a main speed reducer to drive wheels of the extended range electric vehicle to advance. The engine and the generator are connected through the transmission device, when the electric quantity of the battery pack is rapidly exhausted, the engine provides mechanical energy for the generator, the generator keeps optimal torque operation and outputs electric energy with fixed power, the generator provides electric energy for the motor, and the motor is transmitted to the main speed reducer to drive wheels of the extended-range electric automobile to advance. The engine is only used for driving the generator rotor to provide electric energy for the battery, and the pure electric motor driving of the automobile at high speed has the problems of high electric energy consumption, insufficient power following performance, low vehicle speed, difficult climbing, insufficient power and the like.
Although some hybrid electric vehicles on the market are provided with clutches between an engine and an electric motor to control interruption and transmission of engine torque and realize hybrid driving of the engine and the electric motor, executing mechanisms of the clutches in the mode are very complex, the clutches are combined by a hydraulic control module comprising a large number of electromagnetic valves and oil ways, and devices for realizing lubrication and cooling of the clutches are further provided with independent mechanical pumps or electronic pumps to provide power, so that the cost is high, and the installation space of an engine room of a power system of the range-extended electric vehicle is limited, so that the executing mechanisms cannot be completely arranged.
The common wet-type multi-plate clutch for the automobile comprises an outer shell 1, a friction pair, an inner shell 4, a back plate 15 and a pressing plate 16, wherein the outer shell 1 is connected with a torque input shaft, the inner shell 4 is connected with a torque output shaft, the friction pair is arranged between the outer shell 1 and the inner shell 4 and comprises a plurality of friction plates 2 and steel plates 3 which are stacked at intervals in sequence, the friction pair is in a normally open state, one side of the steel plate 3, which is close to the friction plate 2, is connected with a corrugated spring, the outer shell 1 is connected with the friction plates 2, the inner shell 4 is connected with the steel plates 3, the torque input shaft is connected with an output shaft of an engine, the torque output shaft is connected with an input shaft of an electric motor, a pressure oil cavity is further arranged in the clutch, a piston and a needle bearing 5 are arranged in the pressure oil cavity, and when the pressure in the pressure oil cavity increases, the piston and the needle bearing 5 is pushed to compress the friction plate 2 and the steel plates 3, so that the friction plate 2 is tightly attached to the steel plates 3, the corrugated spring is compressed to form a plurality of friction pairs, and the torque of the engine is transmitted to the electric motor through friction force; when the pressure in the pressure oil cavity is reduced, the friction plate 2 and the steel plate 3 are sprung away and separated by the corrugated spring, and torque is not transmitted any more.
Disclosure of Invention
The utility model aims to provide a clutch device for a range-extending hybrid electric vehicle, which realizes the hybrid drive of an engine and a motor through a wet multi-plate clutch, solves the problems of high power consumption, low power following performance, low vehicle speed, difficult climbing, insufficient power and the like of the traditional range-extending power system, adopts an independent actuator, and comprises an independent electric control unit, a motor and a plunger pump inside, so that the clutch device can work independently of a gearbox or an engine system, replaces an electronic oil pump and a hydraulic control valve block with larger volume, has compact structure and saves cost.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a clutch for extending form hybrid vehicle, include: the wet-type multi-disc clutch further comprises an actuator and a pressure relief valve, wherein the actuator comprises an installation shell, an electric control unit, a motor and a plunger pump are arranged in the installation shell, the electric control unit is electrically connected with the motor, the motor is in transmission connection with the plunger pump, an oil inlet and an oil outlet are arranged on the installation shell, the oil inlet and the oil outlet are communicated with the plunger pump, the oil inlet is connected with an oil pan of an automobile through a pipeline, the oil outlet is connected with a pressure oil cavity through a pipeline, the motor is used for driving the plunger pump to rotate, the plunger pump is controlled to absorb oil from the oil pan through the oil inlet, the oil is conveyed to the pressure oil cavity through the oil outlet, and the pressure relief valve is connected between the clutch and the actuator through a pipeline and is electrically connected with an automobile controller.
Compared with the prior art, the utility model has the advantages that: the wet multi-plate clutch is added in the range-extending hybrid architecture, the hybrid driving of the engine and the motor is realized through the wet multi-plate clutch, the problems of high power consumption, low power following performance, low vehicle speed, difficult climbing, insufficient power and the like of the traditional range-extending power system are solved, the wet multi-plate clutch adopts an independent actuator, and the inside of the wet multi-plate clutch is provided with an independent electric control unit, a motor and a plunger pump, so that the wet multi-plate clutch can work independently of a gearbox or an engine system, replaces an electronic oil pump and a hydraulic control valve block with larger volume, has a compact structure and saves cost. When the actuator is used, the electric control unit drives the motor to rotate, the motor drives the plunger pump to rotate, the plunger pump conveys oil to the pressure oil cavity of the clutch through the oil outlet, the oil pressure in the pressure oil cavity is increased, the piston and the needle roller bearing are pushed, the friction plate steel sheet assembly is pressed, the friction plate is tightly attached to the steel sheet, the ripple spring is compressed, a plurality of friction pairs are formed, and therefore torque of the engine is transmitted to the motor through friction force, and the engine and the motor are driven together. When the engine is not used for driving, the oil in the pressure oil cavity is used for flushing the pressure relief valve, flows back to the plunger pump through the pressure relief valve for pressure relief, and after the oil pressure in the pressure oil cavity is reduced, the friction plate and the steel plate are sprung apart by the corrugated spring, so that torque is not transmitted any more. The actuator can obtain the execution pressure required by the clutch according to the rotation speed control, and ensures that the clutch is quickly combined to transmit torque. When the engine is required to work independently, the clutch can be disconnected, and the influence on the clutch caused by the rotational inertia of the engine is avoided.
In the clutch device for the range-extending hybrid electric vehicle, the clutch and the oil pan of the vehicle are connected into a closed loop through a pipeline. The oil in the oil pan cools and lubricates the clutch through the oil way, and then the oil flows back to the oil pan. The wet multi-plate clutch has less heat generation in the using condition, and the clutch can be lubricated by splash oil without additional active lubrication.
In the clutch device for the range-extending hybrid electric vehicle, the motor is a brushless direct current motor, so that friction can be reduced, and the service life of the motor can be prolonged
In the above clutch device for a range-extending hybrid electric vehicle, the electric control unit is a plug-in ECU. The plug-in type electric control unit has high integration level, and the size miniaturization is realized.
In the clutch device for the range-extending hybrid electric vehicle, the plunger pump is internally provided with the centrifugal adjusting mechanism, and the centrifugal adjusting mechanism is used for adjusting fluctuation of output oil pressure and can adjust the pressure fluctuation to be within 5%.
In the clutch device for the range-extending hybrid electric vehicle, the plunger pump and the motor are axially arranged in the mounting shell at intervals, the motor rotor drives the plunger pump to work through the shaft, the structure is compact, and the size of the actuator is reduced.
Drawings
FIG. 1 is a schematic illustration of a wet multiplate clutch;
FIG. 2 is a schematic view of the structure of an actuator according to one embodiment of the present utility model;
fig. 3 is a pressure oil diagram of an actuator-coupled clutch according to one embodiment of the present utility model.
In the figure, 1, an outer shell; 2. a friction plate; 3. a steel sheet; 4. an inner housing; 5. needle roller bearings; 6. an oil pan; 7. an actuator; 8. a pressure release valve; 9. a mounting shell; 10. an electric control unit; 11. a motor; 12. a plunger pump; 13. an oil inlet; 14. an oil outlet; 15. a back plate; 16. a pressing plate; 17. a clutch.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 1 to 3, the clutch device for a range-extending hybrid vehicle according to the present utility model comprises: the wet-type multi-plate clutch 17 further comprises an actuator 7 and a pressure relief valve 8, wherein the actuator 7 comprises an installation shell 9, an electric control unit 10, a motor 11 and a plunger pump 12 are arranged in the installation shell 9, the electric control unit 10 is electrically connected with the motor 11, the motor 11 is in transmission connection with the plunger pump 12, an oil inlet 13 and an oil outlet 14 are arranged on the installation shell 9, the oil inlet 13 and the oil outlet 14 are communicated with the plunger pump 12, the oil inlet 13 is connected with an oil pan 6 of an automobile through a pipeline, the oil outlet 14 is connected with a pressure oil cavity through a pipeline, the motor 11 is used for driving the plunger pump 12 to rotate, the plunger pump 12 is controlled to absorb oil from the oil pan 6 through the oil inlet 13 and deliver oil to the pressure oil cavity through the oil outlet 14, the pressure relief valve 8 is connected between the clutch 17 and the actuator 7 through a pipeline, and the electric control unit 10 and the pressure relief valve 8 are electrically connected with an automobile controller.
The wet multi-disc clutch 17 is added in the range-extending hybrid architecture, the hybrid driving of the engine and the motor is realized through the wet multi-disc clutch 17, the problems of high power consumption, insufficient power following performance, low vehicle speed, difficult climbing, insufficient power and the like of the traditional range-extending power system are solved, the wet multi-disc clutch 17 adopts an independent actuator 7, and the inside of the wet multi-disc clutch 17 comprises an independent electric control unit 10, a motor 11 and a plunger pump 12, can work independently of a gearbox or an engine system, replaces an electronic oil pump and a hydraulic control valve block with larger volume, has a compact structure and saves cost. When the actuator 7 is used, the electric control unit 10 drives the motor 11 to rotate, the motor 11 drives the plunger pump 12 to rotate, the plunger pump 12 conveys oil to a pressure oil cavity of the clutch through the oil outlet 14, oil pressure in the pressure oil cavity is increased, the piston and the needle roller bearing are pushed, the friction plate steel sheet assembly is pressed, the friction plate 2 is tightly attached to the steel sheet 3, the ripple spring is compressed, a plurality of friction pairs are formed, and therefore torque of the engine is transmitted to the motor through friction force, and the engine and the motor are driven together. When the engine is not used for driving, the oil in the pressure oil cavity is used for flushing the pressure relief valve 8 through the oil, and flows back to the plunger pump 12 for pressure relief through the pressure relief valve 8, and after the oil pressure in the pressure oil cavity is reduced, the friction plate 2 and the steel plate 3 are sprung and separated by the corrugated spring, so that torque is not transmitted any more. The actuator 7 of the utility model can obtain the actuating pressure required by the clutch 17 according to the rotation speed control, and ensure the clutch 17 to quickly combine and transmit torque. When the engine is required to work independently, the clutch 17 can be disconnected, and the influence on the clutch 17 caused by the rotational inertia of the engine is avoided. The wet multiplate clutch 17 of the present utility model may be a conventional wet multiplate clutch, and detailed structures thereof are not described in detail in the present utility model.
Further, the clutch 17 and the oil pan 6 are connected into a closed loop through a pipeline. The oil in the oil pan 6 cools and lubricates the clutch 17 through the oil passage, and then the oil flows back to the oil pan 6. The use condition of the wet multi-plate clutch 17 is not serious, the clutch 17 can be lubricated by splash oil, and additional active lubrication is not needed for the clutch 17.
Further, the motor 11 is a brushless DC motor, which can reduce friction and prolong the service life of the motor 11
Further, the electronic control unit 10 is a plug-in ECU. The plug-in electronic control unit 10 has high integration level and realizes size miniaturization.
Further, a centrifugal adjusting mechanism is arranged in the plunger pump 12 and is used for adjusting fluctuation of output oil pressure, and pressure fluctuation can be adjusted within 5%.
Further, a plunger pump 12 is coaxially arranged with the motor 11 within the mounting case 9.
Further, the mounting case 9 is screwed to the outer case 1, and may be mounted on the transmission case.
The clutch device is not only suitable for the range-extending type mixing framework, but also suitable for other types of mixing models, and is also within the protection scope of the utility model.
The specific embodiments described herein are offered by way of example only. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the scope of the utility model as defined.
Claims (6)
1. The utility model provides a clutch for adding range-type hybrid vehicle, includes wet-type multiplate clutch (17), be equipped with the pressure oil pocket in wet-type multiplate clutch (17), its characterized in that: still include executor (7) and relief valve (8), executor (7) are including installing shell (9), be equipped with automatically controlled unit (10), motor (11), plunger pump (12) in installing shell (9), automatically controlled unit (10) with motor (11) electricity is connected, motor (11) with plunger pump (12) transmission is connected, be equipped with fluid entry (13) and fluid export (14) on installing shell (9), fluid entry (13) and fluid export (14) all with plunger pump (12) intercommunication, fluid entry (13) are connected with oil pan (6) of car through the pipeline, fluid export (14) pass through the pipeline with pressure oil chamber is connected, motor (11) are used for driving plunger pump (12) rotate, control plunger pump (12) are through fluid entry (13) follow oil pan (6) and are passed through fluid export (14) to pressure oil chamber, relief valve (8) are in through the pipeline connection between clutch (7) and the oil pan (6) and the automatically controlled unit (8) all are connected with the pressure release valve.
2. Clutch device for range-enhancing hybrid vehicles according to claim 1, characterized in that the clutch (17) is connected to the vehicle sump (6) in a closed circuit by means of a pipe.
3. Clutch device for an extended range hybrid vehicle according to claim 2, characterized in that the motor (11) is a brushless dc motor.
4. The clutch device for an extended range hybrid vehicle according to claim 2, characterized in that the electronic control unit (10) is a plug-in ECU.
5. The clutch device for a range-extending hybrid vehicle according to claim 2, wherein a centrifugal adjustment mechanism is provided in the plunger pump (12), and the centrifugal adjustment mechanism is used for adjusting fluctuation of the output oil pressure.
6. Clutch device for an extended range hybrid vehicle according to claim 2, characterized in that the plunger pump (12) is arranged axially spaced apart from the motor (11) in the mounting housing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322128173.9U CN220470507U (en) | 2023-08-09 | 2023-08-09 | Clutch device for range-extending hybrid electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322128173.9U CN220470507U (en) | 2023-08-09 | 2023-08-09 | Clutch device for range-extending hybrid electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220470507U true CN220470507U (en) | 2024-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322128173.9U Active CN220470507U (en) | 2023-08-09 | 2023-08-09 | Clutch device for range-extending hybrid electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220470507U (en) |
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2023
- 2023-08-09 CN CN202322128173.9U patent/CN220470507U/en active Active
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